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MAX8775 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX8775 Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 30 page Dual and Combinable Graphics Core Controller for Notebook Computers 4 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 1, VIN = 12V, SKIP_ = PGND = AGND, ON_ = VCC = 5V, separate mode, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS PGOOD_ Output Low Voltage ISINK = 4mA 0.4 V PGOOD_ Leakage Current IPGOOD_ High state, PGOOD_ forced to 5.5V 1 µA PGOOD_ Transition Blanking Time Measured from the time CSL_ reaches the target voltage based on the slew rate set by CSLEW_ 20 µs Lower threshold, 0.84VREF 2.0 2.2 Current-Balance Fault Comparator Thresholds V(CCI2, REF), 0.5V ≤ VFB ≤ 2.5V Upper threshold, 1.2VREF 2.9 3.0 V Thermal-Shutdown Threshold TSHDN Hysteresis = 15°C +160 °C GATE DRIVERS DH_ Gate Driver On-Resistance RDH BST_ - LX_ forced to 5V (Note 5) 1.5 5 Ω DL_, high state 1.7 5 DL_ Gate Driver On-Resistance (Note 5) RDL DL_, low state 0.6 3 Ω DH_ Gate Driver Source/ Sink Current IDH DH_ forced to 2.5V, BST_ - LX_ forced to 5V 2 A DL_ Gate Driver Source Current IDL (SOURCE) DL_ forced to 2.5V 1.7 A DL_ Gate Driver Sink Current IDL (SINK) DL_ forced to 2.5V 3.3 A DL_ to DH_ 15 35 Dead Time tDEAD DH_ to DL_ 10 26 ns Internal Boost Diode Switch RON Measure with 10mA of current 6.5 9 Ω LX_, BST_ Leakage Current VBST_ = VLX_ = 28V < 2 20 µA INPUTS AND OUTPUTS Logic Input Current ON1, ON2, DTRANS, SKIP1, SKIP2 -1 +1 µA Logic Input-High Threshold ON1, ON2, DTRANS, SKIP1, SKIP2, hysteresis = 225mV 1.2 1.7 2.2 V Input Leakage Current CSH_, CSL_, 0V, or VDD -0.15 +0.15 µA |
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